Pile-thread-distributing blade for looms.



0.61 A. RENARD.

' PILE THREAD DISTRIBUTiNG BLADE FOR LOOMS.

APPLICATION FILED JAN-28,1914.

Patented Dec.7,'1915.

flv$ lb 1 F M ii W 1 23 muggy y WL l/zesses 11%almq' 44;

I 1:1; l -'j,"ii-i.. 1 CHARLES RENARD AND ALBERT RENARD, OF NONANCOURT, FRANCE.

rinn-rnnnan-nrsrnreurrneBrain: Foe iiooivrs.

iesnoa.

Application filed January 28, 1914. serial no. 815,092.

To all Lo/tom it may concern.

Be it known that We,.C1-IAnLns RENARD andALiinn'rRENAnD, citizens of the Republic or France, residing in Nonancourt, Eure, France, have invented certain new and use ful Improvements in Pile- Thread-Distributing Blades for Looms, of which the following is a specification.

This invention comprises improvements in thepower loom for the mechanical manufacture of Oriental, \vound and other knotstitch carpets, "forming the subject of our United States Patent No. 894,287, of 28th July 1908 and of the application Serial 606,1el3 of 2nd February 1911 and it relates to guide blades for distributing apparatus which bring the pile thread fromthe bobbins to the distributing center, vvhere it sei zed by .nippers vvhich present it to the looping tool. Heretofore, in these guideblades as Well as in all other known systems of distributers, the retention of the thread is effected either by means of a spring acting directly by pressure and by force upon the said thread, or by means of small pieces or levers interposedbetiveen the spring and the thread, but" with these arrangements there are the following objections. c1. Thepress'ure of the interposed lever or spring, calculatedfor the normal delivery of the pile thread hasno useful effect owing to themore or less great resistance and other causes (inherent to the unwinding of thebobbins), as through the forceof the resistance and of the elasticity of the thread, there is produced immediately after the cutting of the pile thread a backward slip of the said thread causing it to dragged from the guideblade or the length of its outward projection tobe simply decreased whereby the distributing nipper is prevented from seizing it. '2. In order to remedy this. defect, it is necessaryto increase the force of the spring in order to more effectually retain the pile thread, but thenthis retention becomes too great for the proper orking of the dis tributing nipper; there is a stretching or deformationof the pile thread, and its draggmg or breakage becomes inevitable. every tlme that an enlargement, an impurity, or

a knot is met With in the thread, the resistance of which can no longer overcome the excess ofpo ver of the spring. y; In knot-stitch looms wherein many hundreds and even thousands of distributers and Specification of Letters Patent.

Patented Dec. "Z

bobbins may be employedina single loom, it s absolutelynecessary to avoid all these ob ectl'ens, which this has not yet been the case with any system, audit is With this obectthat our improvements have been devised,

,Our invention eonsi'sts in the adaptation of a small steel lbladeplaced nearly or exactly perpendicular to the pile thread. This j" plicity of apparatus inthe idth of the 100m.

The .i ollewing description with reference tothe accompanying drawing Will enable the peculiarities and advantages of our inventiofrto be fully understood.

Iiisaid clra ings:-Figure 1 shows a side elevation of a guide embodying the invention. Fig, 2 is a front elevation of the same. Figs. 3 and are vertical sectional views, Fig-e showing athread passing through the guide. K Figsl fi, 6, 7 and 8 are views similar to Figsll, 2, 3 t sho wing a guide for a plurality of threads, Figs. 9, l0 and 11 illustrate; modifications, of the guide, the figures being vertical sectional views.

The guide-blade 1" of "the distributer (shoivn in sideelevation Fig. 1) is adapted at its upper part, to slide in thegrooves arranged on the distributer and to Work under the action ofthe Jacquard for thepresentation of the pilethread of the distributing thelatt'er, and it is notched on the opposite side inorder to allow'or placing perpendicularly or nearly so With' relationto the inner steel strip in 'case of requirement.

wall 6 of the conduit 5, a small steel strip or blade 7 forming a spring let into and riv eted in, the guide-blade at its upper end. The free end of the strip 7 is separated from the wall 6 by a small space which in certain cases may become m'l. This distance is determined by the size of the thread to be distributed.

With a guide-blade thus constructed when the pile thread 8, is drawn by the distributing nipper in the direction indicated by the arrow (Fig. 4) ,thesmall steel strip or blade moves slightly outward andpractically offers no resistance to the passage of the pile thread; if on the contrary, the pile thread is drawn in the other direction, the small strip or blade immediately tends to resume its natural position, acts with its end and effectually blocks the pile thread by binding or wedging, thus'serving a double purpose, namely, facilitating the passage of the pile thread and rendering it impossible for the latter to move back. The end 9 of the guide blade serves as a recoil stop for thesmall This arrangement-is applicable for obtaining multiple distribution guide-blades.

Figs. 5, 6,7 and 8 are respectively'a side elevation, a front elevation, and sections through the line C D, Fig. 6,0f a multiple distribution guide-blade of this kind.

Q11 a guide-blade 10 is fixed by rivets 11., 12, 13, a. sheath 1%: which forms two conduits 15, 16 (it might formniore if required) by the interposition of the partition 17 fixed between the two lateral walls of the sheath 14: by the rivets 18, 19; In each of these two conduits l5 and 16 is arranged and fixed, as before, in the guide blade, a small strip or blade 20 which operates like the strip of the first arrangement. The rivets 21 serve to direct'the thread 8, while the rivets 22- form recoil stops for the small steel strips in case of requirement. The arrangement of the small steel strips in a perpendicular or slightly oblique direction with relation to the thread, their length, their thickness and their width vary according to the size of the pile thread, and the conduits are also made according to this size, so that not only can the threads pass but also the knots which they contain.

The following modifications may also be adopted without departing from the principle of the invention: In the first modification (Fig. 9) a small rigid piece 25 which can freely oscillate is arranged in place of thersmall steel strip or blade; in the'second (Fig. 10) this piece is subjected to the action of a tongue or spring 26 which has solely for object to bring it back into the vertical position; in the third and last modification, two small steel strips or blades 23 and 24 (Fig. 11) are arranged one behind the other in the same conduit; instead of two strips, there may be more, and further these strips may be replaced by the rigid pieces shown in Figs. 9 and 10. 7

What we claim is: I

l. A distributing guide-blade for threads of looms, having a surface over which the thread is adapted to run, and a strip on said guide, said strip being of a length slightly less than the perpendicular distance between its point of attachment and the surface over which the thread runs, said strip being adapted to yield in one direction and permit the running of the thread and adapted to resume a position approximating a perpendicular to said surface over which the thread runs and wedge the thread beface over whichthe thread runs, said strip being adapted to yield in one direction and permit the running of the thread and adapted to resume a position approximating a perpendicular to said surface over which the thread runs and Wedge the thread between the end of said strip and said surface to prevent the backward running of the thread. 3. A distributing guide-blade for threads of looms, having a surface over which the thread is adapted to run, and a strip on said guide, said strip being of a length slightly less than the perpendicular distance between its point of attachment and the surface over which the thread runs, said strip being adapted to yield in one direction and permit the running of the thread and adapted to resumea position approximating a perpendicular to said surface over which the thread runs and wedge the thread between the end of' said strip and said surface to prevent the backward running of the thread, and a stop for preventing said strip moving backward beyond the perpendicular. I V

4:. A distributing guide-blade for threads of looms, having a surface over which the, thread is adapted to run, and a spring-strip on said guide, said strip being of a length slightly less than the perpendicular distance between its point of attachment and the surthread, and a stop for preventing said strip moving backward beyond the perpendicular.

5. A distributing guide-blade for threads of looms, having a plurality of surfaces over which the threads are adapted to run, I

said surfaces being located one above anslightly less than the perpendicular distance between its point of attachment and'thesurface over which the thread runs, said strips being adapted to yield in one direction to permit the running of the threads and adapted to resume positions approximating a perpendicular to said surfaces over which the threads run and wedge the threads between the ends of said strips and said surfaces to prevent backward running of the threads.

6. A distributing guide-blade for threads of looms, having a surface over which the thread is adapted to run, and a plurality of strips on said guide, said strips acting in conjunction with one surface and each being Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

of a length slightly less than the perpendicular distance between its point of attachment and the surface over which the thread runs, said strips being adapted to yield in one direction to permit the running of the thread and adapted to resume positions approximating a perpendicular to said surface over which the thread runs and wedge the thread between the ends of said strips and said surface to prevent backward running of the thread.

In witness whereof we have hereunto signed our names in the presence of two subscribing witnesses.

CHARLES RENARD.

Witnesses:

HANSEN C. COKE, ANsELME Borsnus.

ALBERT RENARD.

Witnesses:

HANSEN C. Coxn, GABRIEL BELLIARD.

Washington, D. G. 

